MPEG-4, MPEG-7 & MPEG-47 Reference Information
MPEG-4
MPEG-4 is the global multimedia standard, delivering professional-quality audio and video streams over a wide range of bandwidths, from cell phone to broadband and beyond. MPEG-4 was defined by the Moving Picture Experts Group (MPEG), the working group within the International Organization for Standardization (ISO) that specified the widely adopted, Emmy Award-winning standards known as MPEG-1 and MPEG-2. Hundreds of researchers around the world contributed to MPEG-4, which was finalized in 1998 and became an international standard in 2000. See Wikipedia for more details.
MPEG-4 H.264
H.264 is the latest MPEG-4 Video Codec. It is officially known as MPEG-4 Part 10, or MPEG-4 AVC (Advanced Video Codec) H.264 is a very efficient Codec, producing great results, but has the disadvantage of being very slow to encode. Frameline 47 supports H.264 encoding. The encode window can be accessed by clicking on the ‘Process to MPEG-4’ Button which can be found on the application’s File Window. A comprehensive summary of the H.264 Codec can be found at Wikipedia.
MPEG-7
MPEG-7 is not a video or audio coding scheme or delivery mechanism. It is a Content Description Framework. Frameline 47 uses a subset of the MPEG-7 standard to provide a practical way of describing Video content.
In a world of more and more content stored in more places, the ability to identify, search, index and publish information about content is key. Officially called the Multimedia Content Description Interface, it's a set of rules and tools for describing content. Most media file types already can carry a metadata payload, which is typically used for Title, Artist, and Copyright information. MPEG-7 is like that but much more. Complex and customized metadata structures can be defined using the XML-based Description Definition Language (DDL). Metadata schemes can include descriptions of semantic elements (shapes, colors, people, objects, motion, musical notation) catalogues elements (copyright and access rules, parental ratings, title, location, date, etc) or structural elements (technical stats about the media). Search engines, PVRs, live broadcasts and content management systems all can benefit from a standard, human and machine-readable way to describe and identify content.
Please refer to the Frameline Schema for details of this subset.
MPEG-47
MPEG-47 is the name given to MPEG-4 media files with embedded MPEG-7 metadata.
Important Note
Frameline’s MPEG-47 format, although composed of the combination of two ISO standards, MPEG-4 and MPEG-7, has not in its-self been ratified as an ISO standard.
Back to top >>